Final answer:
Australopithecus bahrelghazali and Australopithecus garhi are two later forms of Australopithecus. Australopithecus bahrelghazali had a projection of the jaw and smaller teeth and a smaller brain size compared to modern humans. Australopithecus garhi had a larger brain size, longer legs, and smaller teeth compared to other australopithecines.
Step-by-step explanation:
Australopithecus is a genus of early hominins that lived between two and four million years ago. Two later forms of Australopithecus are Australopithecus bahrelghazali and Australopithecus garhi.
Australopithecus bahrelghazali is the only australopith found in Central Africa. It had a more pronounced projection of the jaw, smaller teeth and jaws, and less flared cheeks.
Australopithecus garhi had a larger brain size of about 530 cubic centimeters, more similar to modern humans. It also had longer legs and smaller teeth compared to other australopithecines.